Bug 1012270
| Summary: | resume S4 cause qemu-kvm core dump after hot-plug block device | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | zhonglinzhang <zhzhang> |
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> |
| Status: | CLOSED WONTFIX | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.5 | CC: | acathrow, bsarathy, juzhang, michen, mkenneth, qzhang, virt-maint, xfu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-06-05 22:15:08 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 912287 | ||
resume S4 cause qemu-kvm core dump after hot-plug network:
win8 guest
Steps to Reproduce:
1. Boot a win8 guest
/usr/libexec/qemu-kvm -M pc -cpu SandyBridge -enable-kvm -m 4G -smp 4,sockets=1,cores=4,threads=1 -name test \
-rtc base=localtime,clock=host,driftfix=slew -k en-us -boot menu=on \
-vnc :3 -vga cirrus -usb -device usb-tablet
-global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -monitor stdio \
-drive file=/home/win8-32.raw,if=none,id=drive-system-disk,media=disk,format=raw,aio=native,werror=stop,rerror=stop \
-device virtio-blk-pci,drive=drive-system-disk,id=system-disk,addr=0x5
2. Hotplug rtl8139
(qemu) netdev_add tap,id=virtio2,script=/etc/qemu-ifup
(qemu) device_add driver=rtl8139,netdev=virtio2,mac=00:22:15:27:54:8d,id=test2,addr=0xa
3. Do s4
4. Resume from s4
/usr/libexec/qemu-kvm ... \
-netdev tap,id=virtio2,script=/etc/qemu-ifup -device rtl8139,netdev=virtio2,id=test2,mac=00:22:15:27:54:8d,addr=0xa
Actual Results:
qemu-kvm core dump
(qemu) qemu-kvm: virtio_pci_set_host_notifier_internal: unable to unmap ioeventfd: -2
qemu-kvm: /builddir/build/BUILD/qemu-kvm-0.12.1.2/hw/virtio-pci.c:310: virtio_pci_stop_ioeventfd: Assertion `r >= 0' failed.
Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7fffef4ce700 (LWP 6193)]
0x00007ffff4c9c925 in raise () from /lib64/libc.so.6
(gdb)
(gdb)
(gdb) bt
#0 0x00007ffff4c9c925 in raise () from /lib64/libc.so.6
#1 0x00007ffff4c9e105 in abort () from /lib64/libc.so.6
#2 0x00007ffff4c95a4e in __assert_fail_base () from /lib64/libc.so.6
#3 0x00007ffff4c95b10 in __assert_fail () from /lib64/libc.so.6
#4 0x00007ffff7ddfe15 in virtio_pci_stop_ioeventfd (proxy=0x7ffff877b2b0)
at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:310
#5 0x00007ffff7de0b65 in virtio_ioport_write (opaque=0x7ffff877b2b0, addr=<value optimized out>,
val=0) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:364
#6 0x00007ffff7dece4f in kvm_handle_io (env=0x7ffff86fc230)
at /usr/src/debug/qemu-kvm-0.12.1.2/kvm-all.c:145
#7 kvm_run (env=0x7ffff86fc230) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1049
#8 0x00007ffff7ded089 in kvm_cpu_exec (env=<value optimized out>)
at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1744
#9 0x00007ffff7dedf6d in kvm_main_loop_cpu (_env=0x7ffff86fc230)
at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2005
#10 ap_main_loop (_env=0x7ffff86fc230) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2061
#11 0x00007ffff77009d1 in start_thread () from /lib64/libpthread.so.0
#12 0x00007ffff4d52a8d in clone () from /lib64/libc.so.6
(gdb)
Additional info:
qemu-kvm can not core dump for RHEL6.5 guest(First: hotplug network. Second: s4, Third: resume from s4)
S3/S4 support is tech-preview in RHEL6 and it'll be promoted to fully supported at some point, but only in RHEL7. Therefore we're closing all S3/S4 related bugs in RHEL6. New bugs will be considered only if they're regressions or break some important use-case or certification. RHEL7 is being more extensively tested and effort from QE is underway in certifying that this particular bug is not present there. Please reopen with a justification if you believe this bug should not be closed. We'll consider them on a case-by-case basis following a best effort approach. Thank you. |
Description of problem: Boot a RHEL6.5 guest, then hotplug block device to guest. Do S4 inside guest, qemu-kvm core dump when resuming guest from S4(resume RHEL6.5 guest with new device command line, it include hotplug block device) Version-Release number of selected component (if applicable): host and guest kernel: 2.6.32-419.el6.x86_64 qemu-kvm: qemu-kvm-0.12.1.2-2.404.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. Boot linux guest /usr/libexec/qemu-kvm -M pc -cpu SandyBridge -enable-kvm -m 4G -smp 4,sockets=1,cores=4,threads=1 -name test \ -rtc base=localtime,clock=host,driftfix=slew -k en-us -boot menu=on \ -vnc :3 -vga cirrus -usb -device usb-tablet \ -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -monitor stdio \ -drive file=/home/RHEL6.5-64-IDE.raw,if=none,id=drive-system-disk,media=disk,format=raw,aio=native,werror=stop,rerror=stop -device virtio-blk-pci,drive=drive-system-disk,id=system-disk,addr=0x3 \ -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,id=virtio-net-pci0,mac=00:22:15:27:54:8d,bus=pci.0,addr=0x8 \ -qmp tcp:0:7777,server,nowait 2. Hot block device in monitor: (qemu) __com.redhat_drive_add file=/home/adddisk.raw,format=raw,id=drive-s1-disk (qemu) device_add virtio-blk-pci,drive=drive-s1-disk,id=s1-disk,addr=0x7 3. Do s4 in guest: 4. Resume s4: /usr/libexec/qemu-kvm -M pc -cpu SandyBridge -enable-kvm -m 4G -smp 4,sockets=1,cores=4,threads=1 -name test \ ..................................... -drive file=/home/adddisk.raw,if=none,format=raw,id=drive-s1-disk -device virtio-blk-pci,drive=drive-s1-disk,id=s1-disk,addr=0x7 Actual results: Core dump; (qemu) qemu: hardware error: register_ioport_write: invalid opaque CPU #0: RAX=0000000000000000 RBX=0000000000000000 RCX=0000000000000000 RDX=0000000000000000 RSI=0000000000000001 RDI=ffffffff81de5228 RBP=ffffffff81a01ea8 RSP=ffffffff81a01ea8 R8 =0000000000000000 R9 =0000000000000000 R10=0000001087ee0600 R11=0000000000000000 R12=ffffffff81c06600 R13=0000000000000000 R14=ffffffffffffffff R15=ffffffff81de1000 RIP=ffffffff8103eccb RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] FS =0000 0000000000000000 ffffffff 00000000 GS =0000 ffff880028200000 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 TR =0040 ffff8800282143c0 00002087 00008b00 DPL=0 TSS64-busy GDT= ffff880028204000 0000007f IDT= ffffffff81de1000 00000fff CR0=8005003b CR2=00007f4d230bb996 CR3=000000011c13c000 CR4=000406f0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000033 ffff FPR1=000000000000000d ffff FPR2=8000000000000000 ffff FPR3=001c000000000000 ffff FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=f000000000000000 ffff FPR7=0000000000000003 ffff XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=0000ff000000ff000000000000000000 XMM03=0000000000000000000000ff00000000 XMM04=20726f6620676e6974696177002f2a2f XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 CPU #1: RAX=0000000000000000 RBX=0000000000000001 RCX=0000000000000000 RDX=0000000000000000 RSI=0000000000000001 RDI=ffffffff81de5228 RBP=ffff88011dc13ed8 RSP=ffff88011dc13ed8 R8 =0000000000000000 R9 =0000000000000000 R10=000000133a769302 R11=0000000000000000 R12=ffffffff81c06600 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff8103eccb RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] FS =0000 0000000000000000 ffffffff 00000000 GS =0000 ffff880028280000 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 TR =0040 ffff8800282943c0 00002087 00008b00 DPL=0 TSS64-busy GDT= ffff880028284000 0000007f IDT= ffffffff81de1000 00000fff CR0=8005003b CR2=000000000193845c CR3=0000000001a85000 CR4=000406e0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 CPU #2: RAX=0000000000000000 RBX=0000000000000002 RCX=0000000000000000 RDX=0000000000000000 RSI=0000000000000001 RDI=ffffffff81de5228 RBP=ffff88011dc27ed8 RSP=ffff88011dc27ed8 R8 =0000000000000000 R9 =0000000000000000 R10=000000133d52b03d R11=0000000000000000 R12=ffffffff81c06600 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff8103eccb RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] FS =0000 0000000000000000 ffffffff 00000000 GS =0000 ffff880028300000 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 TR =0040 ffff8800283143c0 00002087 00008b00 DPL=0 TSS64-busy GDT= ffff880028304000 0000007f IDT= ffffffff81de1000 00000fff CR0=8005003b CR2=000000000193845c CR3=0000000001a85000 CR4=000406e0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 CPU #3: RAX=000000000000c081 RBX=ffff88011ddd2400 RCX=0000000000000010 RDX=0000000000000cfc RSI=0000000000000000 RDI=0000000000000097 RBP=ffff88011b5e1c78 RSP=ffff88011b5e1c48 R8 =0000000000000004 R9 =000000000000c081 R10=0000000000000040 R11=000000000000000c R12=0000000000000246 R13=000000000000c081 R14=0000000000000010 R15=ffff88011b5e1d14 RIP=ffffffff81440a79 RFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00000000 FS =0000 00007f22fbf95700 ffffffff 00000000 GS =0000 ffff880028380000 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 TR =0040 ffff8800283943c0 00002087 00008b00 DPL=0 TSS64-busy GDT= ffff880028384000 0000007f IDT= ffffffff81de1000 00000fff CR0=8005003b CR2=00007f344b88dd1b CR3=000000011c13c000 CR4=000406e0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 Program received signal SIGABRT, Aborted. [Switching to Thread 0x7fffee0cc700 (LWP 15606)] 0x00007ffff4c9c925 in raise () from /lib64/libc.so.6 Missing separate debuginfos, use: debuginfo-install alsa-lib-1.0.22-3.el6.x86_64 celt051-0.5.1.3-0.el6.x86_64 cyrus-sasl-lib-2.1.23-13.el6_3.1.x86_64 cyrus-sasl-md5-2.1.23-13.el6_3.1.x86_64 cyrus-sasl-plain-2.1.23-13.el6_3.1.x86_64 db4-4.7.25-18.el6_4.x86_64 dbus-libs-1.2.24-7.el6_3.x86_64 flac-1.2.1-6.1.el6.x86_64 glib2-2.26.1-3.el6.x86_64 glibc-2.12-1.129.el6.x86_64 glusterfs-api-3.4.0.21rhs-1.el6.x86_64 glusterfs-libs-3.4.0.21rhs-1.el6.x86_64 gnutls-2.8.5-10.el6_4.2.x86_64 keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-10.el6_4.6.x86_64 libICE-1.0.6-1.el6.x86_64 libSM-1.2.1-2.el6.x86_64 libX11-1.5.0-4.el6.x86_64 libXau-1.0.6-4.el6.x86_64 libXext-1.3.1-2.el6.x86_64 libXi-1.6.1-3.el6.x86_64 libXtst-1.2.1-2.el6.x86_64 libaio-0.3.107-10.el6.x86_64 libasyncns-0.8-1.1.el6.x86_64 libcom_err-1.41.12-18.el6.x86_64 libgcrypt-1.4.5-9.el6_2.2.x86_64 libgpg-error-1.7-4.el6.x86_64 libjpeg-turbo-1.2.1-1.el6.x86_64 libogg-1.1.4-2.1.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64 libsndfile-1.0.20-5.el6.x86_64 libtasn1-2.3-3.el6_2.1.x86_64 libuuid-2.17.2-12.14.el6.x86_64 libvorbis-1.2.3-4.el6_2.1.x86_64 libxcb-1.8.1-1.el6.x86_64 nss-softokn-freebl-3.14.3-6.el6.x86_64 openssl-1.0.1e-11.el6.x86_64 pulseaudio-libs-0.9.21-14.el6_3.x86_64 spice-server-0.12.4-3.el6.x86_64 tcp_wrappers-libs-7.6-57.el6.x86_64 zlib-1.2.3-29.el6.x86_64 (gdb) (gdb) bt #0 0x00007ffff4c9c925 in raise () from /lib64/libc.so.6 #1 0x00007ffff4c9e105 in abort () from /lib64/libc.so.6 #2 0x00007ffff7dc9712 in hw_error (fmt=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:519 #3 0x00007ffff7e3f89d in register_ioport_write (start=<value optimized out>, length=<value optimized out>, size=6, func=0xffffffffffffffff, opaque=0x7fffee0cc700) at /usr/src/debug/qemu-kvm-0.12.1.2/ioport.c:171 #4 0x00007ffff7de059a in virtio_map (pci_dev=0x7ffff8783110, region_num=<value optimized out>, addr=49280, size=<value optimized out>, type=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:533 #5 0x00007ffff7dd67bb in pci_update_mappings (d=0x7ffff8783110) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/pci.c:1067 #6 0x00007ffff7de0d32 in virtio_write_config (pci_dev=0x7ffff8783110, address=16, val=49281, len=4) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:559 #7 0x00007ffff7decfac in kvm_handle_io (env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/kvm-all.c:151 #8 kvm_run (env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1049 #9 0x00007ffff7ded089 in kvm_cpu_exec (env=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1744 #10 0x00007ffff7dedf6d in kvm_main_loop_cpu (_env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2005 #11 ap_main_loop (_env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2061 #12 0x00007ffff77009d1 in start_thread () from /lib64/libpthread.so.0 #13 0x00007ffff4d52a8d in clone () from /lib64/libc.so.6 (gdb) #0 0x00007ffff4c9c925 in raise () from /lib64/libc.so.6 #1 0x00007ffff4c9e105 in abort () from /lib64/libc.so.6 #2 0x00007ffff7dc9712 in hw_error (fmt=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:519 #3 0x00007ffff7e3f89d in register_ioport_write (start=<value optimized out>, length=<value optimized out>, size=6, func=0xffffffffffffffff, opaque=0x7fffee0cc700) at /usr/src/debug/qemu-kvm-0.12.1.2/ioport.c:171 #4 0x00007ffff7de059a in virtio_map (pci_dev=0x7ffff8783110, region_num=<value optimized out>, addr=49280, size=<value optimized out>, type=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:533 #5 0x00007ffff7dd67bb in pci_update_mappings (d=0x7ffff8783110) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/pci.c:1067 #6 0x00007ffff7de0d32 in virtio_write_config (pci_dev=0x7ffff8783110, address=16, val=49281, len=4) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:559 #7 0x00007ffff7decfac in kvm_handle_io (env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/kvm-all.c:151 #8 kvm_run (env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1049 #9 0x00007ffff7ded089 in kvm_cpu_exec (env=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1744 #10 0x00007ffff7dedf6d in kvm_main_loop_cpu (_env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2005 #11 ap_main_loop (_env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2061 #12 0x00007ffff77009d1 in start_thread () from /lib64/libpthread.so.0 #13 0x00007ffff4d52a8d in clone () from /lib64/libc.so.6 (gdb) #0 0x00007ffff4c9c925 in raise () from /lib64/libc.so.6 #1 0x00007ffff4c9e105 in abort () from /lib64/libc.so.6 #2 0x00007ffff7dc9712 in hw_error (fmt=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:519 #3 0x00007ffff7e3f89d in register_ioport_write (start=<value optimized out>, length=<value optimized out>, size=6, func=0xffffffffffffffff, opaque=0x7fffee0cc700) at /usr/src/debug/qemu-kvm-0.12.1.2/ioport.c:171 #4 0x00007ffff7de059a in virtio_map (pci_dev=0x7ffff8783110, region_num=<value optimized out>, addr=49280, size=<value optimized out>, type=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:533 #5 0x00007ffff7dd67bb in pci_update_mappings (d=0x7ffff8783110) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/pci.c:1067 #6 0x00007ffff7de0d32 in virtio_write_config (pci_dev=0x7ffff8783110, address=16, val=49281, len=4) at /usr/src/debug/qemu-kvm-0.12.1.2/hw/virtio-pci.c:559 #7 0x00007ffff7decfac in kvm_handle_io (env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/kvm-all.c:151 #8 kvm_run (env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1049 #9 0x00007ffff7ded089 in kvm_cpu_exec (env=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:1744 #10 0x00007ffff7dedf6d in kvm_main_loop_cpu (_env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2005 #11 ap_main_loop (_env=0x7ffff8734db0) at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2061 #12 0x00007ffff77009d1 in start_thread () from /lib64/libpthread.so.0 #13 0x00007ffff4d52a8d in clone () from /lib64/libc.so.6 (gdb) q A debugging session is active. Inferior 1 [process 15589] will be killed. Expected results: Guest should work well after s4. Additional info: RHEL6.5 host: win8 guest can not resume from s4 with new adding device command line. RHEL6.4 host qemu-kvm core dump.